baber/WOPTO huggingface dataset:
Patent GB-141224-A (GB)
Title: Improvements in taps for cutting threads or thread cutting
IPC: B23G5/14
Filed: 1919-05-28
Abstract: 141,224. National Acme Co., and Rindfleisch, B. F. May 28, 1919. Taps.-In a collapsible tap, which is in part an improvement on the invention described in Specification 112,789, the chasers are held in their working positions by a core-bar which is axially rotated against a coiled spring directly connected to the core-bar, and the chasers are automatically collapsed at the end of the action by means of a disk 31, Fig. 2, adjustable on a sleeve 25 and set to engage the face of the work when desired. The sleeve 25, when pressed back against springs 21, Fig. 4, withdraws lugs 20<1> from engagement with recesses 18 in a collar 17, which is thereupon rotated under the action of a coiled spring 6<11>, along with the core-bar 6. The corners 8<1> on the reduced end of the core-bar are thus moved into the position shown in Fig. 9, and the chasers are forced inwards by the action of spring-pressed pins 15 and slots 14. The spring 6<11> is twisted a certain amount when being put in place, so that it always tends to collapse the cutters. A further twist is put on the spring by a handle 20, by means of which the chasers are set in the expanded position. The movement of the handle is limited by adjustable stops 22, Fig. 11, carried by the collar 17.
Patent GB-401016-A (GB)
Title: Improvements in or relating to speed regulating systems
IPC: B65H23/188
Filed: 1932-05-10
Abstract: 401,016. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych London, and WHITELEY, A. L., 11, Stanley Road, Hillmorton Paddox, Rugby. May 10, 1932, No. 13470. [Class 38 (iii).] Reversing.-In a control arrangement for an inset-web feed, the inset web 2 is provided with control areas 3 which co-operate with a lightsensitive cell 1 to transmit impulses to the grid 5 of a vapour-discharge device 6. Impulses are also transmitted to the grid 9a of a similar device 9 from a contact maker 8, rotated synchronously with the main press, and the two valves, which are preferably of the type known under the Registered Trade Mark "Thyratron," are connected together as shown through a condenser 19 and the field windings 13, 14 of a motor 15, which serve to operate suitable speed-change mechanism, such as described in Specification 373,189, preferably through a lostmotion device 20, 21, 22. If the web 3 is in register, neither valve operates, but if the web lags, the contacts 10, 11 make and give a positive impulse to the grid 9a of the valve 9, which immediately becomes conducting. The register area 3 then gives rise to an impulse on the grid 5 of the valve 6, which becomes conducting and through the action of the condenser 19 stops the arc in the valve 9. The valve 6 remains conducting for a relatively long period, until the next impulse is transmitted from the contact maker 8 and during this period the field winding 13 is energized to give the motor 15 an appropriate rotation to speed up the inset web. Should the web 2 be in advance, the valve 9 operates similarly to energize the winding 14 and drive the motor 15 in the opposite direction. The contact device 8 may be replaced by a second photo-electric cell co-operating with register areas on a web printed in the main press ; alternatively, the photo-electric cell 1 may be replaced by a contact device such as 8 driven from the feed-roller shaft of the inset web, in which form the device is employed for maintaining synchronous speeds between two driven shafts. To give a lower rate of correction when the web speed is lower, the armature windings of the motor 15 may be supplied from a direct-current generator driven by the main press.
Patent GB-611659-A (GB)
Title: Improvements in or relating to heating plant
IPC: F22D11/00
Filed: 1946-05-03
Abstract: 611,659. Heating by circulation of fluids. BABCOCK & WILCOX, Ltd., and LULY, E. L. May 3, 1946, No. 13470. [Class 64(ii)] In a heating plant, liquid from a forced circulation boiler 1 passes through heat utilizing means 13, e.g., radiators, and the liquid temperatures at the inlets of the boiler and the heat utilizing means are separately regulable. The temperature of the liquid supplied to the heat utilizing means is maintained below the temperature of liquid entering the boiler, so that the latter temperature can be kept above the dew-point of the heating gases, to prevent corrosion of the boiler heating surfaces. In the form shown, two constant-speed, constant-volume pumps 11, 12 circulate hot water from the water tube boiler 1 to the heat utilizing means 13 and back again, one pump 11 being in a local circuit, formed by a by-pass 18, with the heat utilizing means 13 and the other 12 in a local circuit, formed by a by-pass 19, with the boiler 1. The local circuit of pump 11 uses water generally cooler than that elsewhere in the system but is kept up to necessary temperature by water from the outlet header 6 of the boiler, a thermostat 23 in this circuit controlling the motor of the chain grate stoker 7 and also therefore the boiler rate of firing and the temperature of the water leaving the boiler. The temperature of the water entering the boiler is regulated by mixing hot water from the by-pass 19 in regulable proportions with the cold water returned from the heat utilizing means 13, in a mixing valve 21 controlled by a thermostat 22 in the inlet pipe to the boiler. In an alternative form the thermostat 22 controls the stoker motor and the thermostat 23 controls a valve in the by-pass 18, the mixing valve 21 being dispensed with. A saturation temperature warning device 40 and a make-up water tank 41 are provided.
Patent GB-1033552-A (GB)
Title: Improvements in or relating to control means for the shut-off cock of a pipeline coupling of rail vehicles
IPC: B61G5/08
Filed: 1963-04-04
Abstract: 1,033,552. Automatic couplers with train pipe valve gear. J. VIELMETTER. April 4, 1963 [April 15, 1962], No. 13531/63. Heading B7T. An automatic coupler head 1 mounting a pipeline coupler, Fig. 1, comprises a retractable feeler 3 which may be pushed inwardly against gravity or a spring during coupling up to move a Bowden cable 7, a slotted link 9 and a pivoted arm 27 to open a pipeline valve 29, Fig. 3 (not shown). In the uncoupled condition, Fig. 1, the valve 29 may be opened manually by pivoting the arm 27 so that the pin 25 moves to the left-hand end of the slot 11, Fig. 2 (not shown). If uncoupling from the Fig. 3 condition takes place, then the link 9 is pulled forwardly but the arm 27 remains unmoved and the valve is kept open. If it is intended that the valve 29 be closed during uncoupling, then the rod 33 must be pulled so as to move the link 9 to the Fig. 4 (not shown) position. The link-pin 25 then enters the upper slot 17 so that when the couplers are separated the arm 27 is moved to close the valve 29 and the link 9 finally snaps up into the Fig. 1 position and returns the pin 25 to the slot 11. If a ring 43 or 49 is to be replaced in the coupled condition the control gear is brought to the Fig. 4 position and the pipeline coupling manually separated after the valve 29 is brought to its closed position. The cable 7 may be replaced by linkage and the feeler 3 arranged on the pipeline coupling, and the members 3, 9 and 25, 29 may be connected by gearing if required.
Patent GB-135525-A (GB)
IPC: B24B53/075
Abstract: 135,525. Thomas, P. G. Feb. 15, 1918. Turning. - Corborundum or other abrasive wheels are trimmed by means of a diamond or like tool 1 which is slidably adjustable, as by a screw, in a carrier 3 mounted on horizontal pivots 4 in a frame 5 which may swing about vertical pivots 7. Adjustable stops limit the movement of the frame 5. With the carrier 3 vertical, swing- ing of the frame 5 gives a concave or convex edge to the abrasive wheel x, according to the adjustment of the tool 1. With the frame 5 in its limiting or central positions, oscillation of the carrier 3 causes the tool 1 to trim the flanks of the wheel x or to give it a flat edge. Chisel and other edges may also be formed on the wheel. In the screw-trimming machine shown, the frame 5 is carried by a. shoe 9 adjustable on guides 10 by a screw. Standards 11, 12, movable independently or by a right and left hand screw, carry abrasive wheels x, 13, one of which trims the apex and the other the root of the screw-thread. A diamond trimming apparatus may be provided for each wheel or for one wheel only, this wheel being then employed to grind the other wheel to shape.
Patent GB-233541-A (GB)
Title: Improvements in or relating to tappet valve steam engines
IPC: F01B29/12
Filed: 1924-06-04
Abstract: 233,541. Jones, E. P. June 4, 1924. Cam gears.-A double-acting engine is provided with pairs of cylinders a arranged at 90‹, the connecting-rods c of each pair being connected to a common crank d. The cylinders have separate admission and exhaust valves f, g worked from a common, longitudinally-adjustable cam shaft i. The inlet valves f are arranged on the inner side of the V formed between the cylinders, and the exhaust valves on the outside. The exhaust valves are operated through rocking arms h and separate push rods.
Patent GB-1458546-A (GB)
Title: Projective-reflecitve optical apparatus
IPC: F21V7/05
Filed: 1974-03-27
Abstract: 1458546 Optical assembly AMERICAN MFG CO Inc 27 March 1974 [29 March 1973] 13618/74 Heading G2J [Also in Division G1] An assembly of light source, photo-detector and optical elements comprises a solid transparent trapezoidal member 16 having an inclined internally reflective surface, the back of which is coated with opaque material, a lens 15 being formed integrally with the member 16 on the front surface thereof. A lamp 12 is accurately positioned centrally of the back of the reflective surface and at the focus of lens 15 by adjustment screws 26 and rotation in its bayonet adjustment, so that a shadow of projection 16b falls on to a marked spot 30. Light passes either side of the projection 16 through the sides of lens 15 to an object to be detected, and is reflected back from the object to the body 16 which it enters via the centre of lens 15 to be reflected at the internal reflective surface downwards to a detector, e.g. a phototransistor, mounted in a cavity within the body, on the board 11. The object detected may bear a retro-reflective tape. It may be one of many, on a conveyor belt, to be counted. Alternatively, it may be part of an elevator mechanism to be controlled.
Patent GB-528475-A (GB)
Title: Improvements in and relating to methods of suppressing the current to earth in high tension distribution systems
IPC: H02H9/08
Filed: 1939-05-08
Abstract: 528,475. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. May 8, 1939, Nos. 13714 and 13715. Convention dates, May 10, 1938, and Aug. 4, 1938. [Class 38 (iv)] A Petersen coil 3 is associated on the same core with a coil 5 connected in series with tertiary windings 6, in open delta for example, on the transformer 1, so that when a system fault occurs the duty is divided between them, the coil 3 being subject to a voltage U 1 , and the coil 5 absorbing the voltage U 2 . Compensation of the 5th and higher harmonics may be provided by suitable design, and tuning may be effected by variable air gap or tapped windings. Triple harmonics in network or transformer may be compensated by saturation of the choke. An auxiliary choke with tapped windings may be in parallel with the coil 5 to enable the winding ratio to be preserved.
Patent GB-1262149-A (GB)
Title: Preparation of cyclic siloxanes
IPC: C07F7/21
Filed: 1969-03-17
Abstract: 1,262,149. Cyclic siloxanes. UNION CARBIDE CORP. 17 March, 1969 [18 March, 1968], No. 13803/69. Heading C3S. [Also in Divisions C4-C5] A mixture of a hexamethylphenylhydrocarbon cyclic tetrasiloxane of the formula and an octamethylphenylhydrocarbon pentasiloxane of the formula wherein # represents phenyl and R represents methyl or phenyl, is prepared by cohydrolyzing one mole of a phenylhalosilane monomer of the formula #Si(R)X 2  with at least three moles of a methylhalosilane monomer of the formula (CH 3 ) 2 SiX 2 , wherein X represents halogen, at a temperature ranging from 40 to 70 C., in the presence of at least 25% of diisopropyl ether solvent based on the total weight of halosilane monomer reactants employed, and an amount of water or concentrated hydrochloric acid at least sufficient to provide a two-phase hydrolysis system. Uses.-The above mixtures of cyclic siloxanes may be used as lubricants, as dispersing agents for fillers in rubber compositions and for preparing copolymers.
Patent GB-350670-A (GB)
Title: A milk preparation and a process for producing same
IPC: A23C9/18
Filed: 1930-05-05
Abstract: A milk preparation, for use in making confectionery and in baking &c., is obtained by mixing dried milk powder and sugar, adding water and stirring to a creamy consistency, then heating under vacuum with stirring to give a doughy mass which is shaped in moulds and allowed to cool, a substantially solid mass being obtained.  A mixture of 56 parts by weight of milk powder and 45 parts of sugar may be used.  An emulsifying or binding agent, e.g. agar or sodium citrate, may be added to the mixture, and a flavouring, e.g. vanilla, may also be added at the same time as the water, which is preferably heated to 140 DEG  F.
Patent GB-841010-A (GB)
Title: Improvements in or relating to greenhouses
Inventor: TERLINDEN THEODOR
IPC: A01G/
Filed: 1958-05-01
Abstract: 841,010. Greenhouses. TERLINDEN, T., and TERLINDEN, W. May 1, 1958 [May 3, 1957], No. 13843/58. Class 20(1) A greenhouse comprises a framework of vertical poles, 5, 5a having spiked ends 4, and traverse poles 6 which support a covering 2 of a light-permeable foil of synthetic material and is characterised in that the framework has spring loaded thrust bars 26, which automatically compensate for variations in tension of the foil. The bars 26 are supported on the poles 6 (see Fig. 7) by a cranked lever 16, 16a and a telescopic tube 21, 23. The cranked lever may be adjusted (Fig. 7) to provide for a large variation in tension of the foil whilst small variations are allowed for by the spring 22 acting against the pin 25. The foil 2 is detachably held in position by providing a loop 2a at its edge (see Fig. 4) through which a rod 30 passes and engaging this rod with hooks 27 disposed along both the longitudinal base angle member 28 and the guttering 14. The framework is detachably held together by pins passing through brackets and may comprise one or more bays.
Patent GB-119497-A (GB)
Title: Improvements in and relating to Firing Devices for Submerged Mines.
Inventor: DUFFIE JOHN JEFFERSON
IPC: F42C14/04
Filed: 1917-09-26
Abstract: 119,497. Duffie, J. J. Sept. 26, 1917. Mines, marine.-Relates to mines exploded by the inversion of an electric switch, and consists mainly in arranging the switch outside the mine. In the form shown in Fig. 1, switches 18, 19, and 48 are arranged at various places in a network 8 which carries mines 1 supported by floats 12, 16 and attached to anchors 4 with interposed floats 3. If a part of such a net is cut by a passing submarine vessel, a switch near the cut part turns upside down and fires a mine. The switches 18 and 19 turn by a downward swing due to gravity; the switches 48 turn by an upward swing caused by the buoyancy of a float 49. The switch shown in Fig. 3 comprises an insulated tube 21 containing mercury 25 which closes contacts 27, 27<1> when the switch is inverted. Another form of switch, shown in Fig. 5, contains an insulated weight 54 which presses a contact 55 against another contact 56 when the switch is inverted.
Patent GB-748706-A (GB)
Title: The esterification of pyridine carboxylic acids
Filed: 1953-05-18
Abstract: Esters of pyridine carboxylic acids are made by heating the acid with an alcohol containing at least 4 C atoms per molecule in the presence of an acid salt of the acid to be esterified. Specified acids for esterification are picolinic, nicotinic, isonicotinic, quinolinic, lutidinic, cinchomeronic, isocinchomeronic, dinicotinic and dipicolinic acids.  Butanols are preferred alcohols.  Specified acid catalysts are sulphuric, p-toluenesulphonic and benzenesulphonic acids.  Advantageously water formed during the reaction is continuously removed as a wateralcohol azeotrope, the required ester recovered at the end of the reaction by distillation and the residue containing the acid salt reused as catalyst for the esterification. The acid salt may be present in amounts of 30-80 per cent by weight based on the pyridine carboxylic acid used.  Preferably the alcohol is used in excess, e.g. 5-10 mols. of alcohol per mol. of pyridine carboxylic acid may be used.  Examples describe the preparation of n-butyl nicotinate and isonicotinate.
Patent GB-930700-A (GB)
Title: Improvements in or relating to machine bearings
Inventor: SELBY JAMES
IPC: F16C37/00
Filed: 1961-04-18
Abstract: 930,700. Bearings. B. ELLIOTT & CO. Ltd. April 17, 1962 [April 18, 1961], No. 13940/61. Class 12 (1). In a means for cooling ball or roller bearings, a sleeve 7 abuts a side face of a race 5 and is spaced from a housing 2 to form an annular passage 9 for cooling liquid which enters through an inlet 10 in the housing 2 and leaves through an outlet 11 therein. The sleeve 7 has screws 8 therein, which effect spacing from said housing 2, and has holes 13 therein which allow lubrication of the balls &c. In an embodiment two ball bearings 3 are mounted in a housing 2 and are spaced apart by a ring 6 which abuts the inner races 4 and by the ring 7 which abuts the outer races 5. The coolant passage 9 is provided between the side faces of the outer races 5. the housing 2, and the ring 7.
Patent GB-929103-A (GB)
Title: Improvements in turbines
IPC: F01D11/04
Filed: 1961-04-18
Abstract: 929,103. Elastic-fluid turbines. SOC. RATEAU. April 18, 1961 [April 19, 1960], No. 13981/61. Class 110 (3). A turbine in which leakage of working fluid takes place along the rotor shaft includes means which substantially prevents leakage on the upstream side and increases the leakage on the downstream side of the first turbine stage, the leakage fluid flowing through axial passages in the rotor to discharge. The means comprises an annular barrier b between the first stage nozzles and rotor blades (Fig. 6), the barrier being level with the blade roots and comprising a single ring or a labyrinth b 1  (Fig. 4). An alternative form of the device comprises blading in which the space between the blades is greater at the trailing edges than at the leading edges thereby slightly raising the pressure at the downstream face of the turbine disc. In a further alternative, which may be used in combination with any of the foregoing devices, the axial passages through the turbine disc have their upstream openings at a greater radius than their downstream openings so that extraction of the leakage fluid is assisted by a centrifugal effect. In a turbine having nozzles mounted in nozzle boxes, leakage, which would bring hot working fluid in contact with the rotor shaft, is prevented by a seal mounted level with the blade tips and which is similar to the seal b.
Patent GB-675180-A (GB)
Title: Improvements in epoxide compositions
IPC: C08G67/00
Filed: 1948-05-24
Abstract: A resinous composition suitable for use in solution as adhesives for bonding wood to wood, glass, metals and bristles, e.g. for use in paint brushes comprises one part of a polyepoxide which is liquid or has a softening-point below 40 DEG  C. and 2/3 -3 parts of a resinous epoxide having a softening point between 40 DEG  and 65 DEG  C., said resinous epoxide being prepared by reaction of an epihalogen, a polyhydric phenol and an alkali.  The low melting-point epoxide is preferably a simple aliphatic polyepoxide, e.g. butane dioxide, bis-(2,3-epoxy propyl) ether (diglycid ether) isoprene dioxide, hexadiene dioxides, limonene dioxide.  Complex aliphatic polyepoxides may also be used which are prepared by reaction of an epihalohydrin with a polyhydric alcohol followed by dehydrohalogenation of the product formed. The resinous polyepoxides of higher softening point are preferably prepared by reacting bis phenol with epichlorhydrin in presence of alkali at temperatures of 80-110 DEG  C. and washing the product to free it from alkali.  The mixed epoxides are preferably used in admixture with phenols, e.g. phenol, cresols, resorcinol, hydroquinone, catechol, bis-phenols and hardening of the mixture is accelerated by the incorporation of a catalyst, e.g. alkalihydroxides or phenoxides, partial esters of phosphoric acid, polyfunctional aliphatic amines, e.g. diethylene triamine or triethylene tetramine, Friedel-Craft type catalysts and complexes thereof with ethers, acid anhydrides, amines, amides, sulphides or diazonium salts. Compositions with or without admixture of phenols may be stored for several days at temperatures below 20 DEG  C. in absence of a catalyst and below 40 DEG  C. in presence of a catalyst. Polymerization inhibitors may be added to the mixture, e.g. small quantities of organic acids, e.g. oxalic acid.  Tables giving the preferred proportions in which the components of the compositions are to be mixed and the viscosity of the compositions thus obtained are given in the Specification.  A typical composition is 45 parts liquid epoxide, 40 parts resinous epoxide, 115 parts bis-phenol and 0.1 per cent oxalic acid and is converted to the infusible state by addition of 2 per cent KOH in 50 per cent aqueous solution.
Patent GB-1416977-A (GB)
Title: Process for separation of diisopropylbenzenes
IPC: C07C7/148
Filed: 1974-03-29
Abstract: 1416977 Separating diisopropylbenzenes TOYO SODA MFG CO Ltd 29 March 1974 14104/74 Heading C5E m and/or p Diisopropylbenzenes are separated from a bottom by-product of cumene preparation by reacting the cumene bottom with propylene in the presence of an alkylation, catalyst, with or without the addition of benzene, cumene, m and p diisopropylbenzenes and/or triisopropylbenzene, followed by distillation to separate out the m and/or p diisopropylbenzenes. The residual mixture from the distilation may be further reacted in the presence of an alkylation catalyst with or without the addition of benzene, cumene or triisopropylbenzene and the resulting reaction mixture recyled to the propylene reaction step or the distillation. Suitable alkylation catalysts are AlCl 3 /HCl, solid phosphoric acid, H 2 SO 4 , BF 3  or aluminium silicate. The propylene may be derived in situ from polyisopropylbenzene.
Patent GB-180998-A (GB)
Title: Automatic sluices for the reservoirs destined to utilize the hydraulic power of the sea
IPC: E02B9/08
Filed: 1922-05-19
Abstract: 180,998. Barrages Automatiques Soc. Anon. June 3, 1921, [Convention date]. Sluice gates.-An automatic sluice more particularly for controlling the admission of water to and from reservoirs in tidal power plants comprises a hollow cylindrical or prismatic reinforced concrete obturator a furnished with contact surfaces b to ensure watertight closure. The obturator is ballasted with sand so that its weight is equal to that of the water displaced by it and in order to reduce friction is provided with rollers at each end running on rails. As soon as the head in the reservoir communicating with the lower face of the obturator rises above that in the other, the obturator will rise; and as soon as a descending current occurs the sluice closes. To protect the sluice against damage by waves, it may be provided with liquid or other brakes.